Apparatus for piercing timber



P. J. HOWE. APPARATUS FOR PIERCING TIMBER. APPLICATION FILED APR.28, 1920.

1,346, 1 26. Patented July 13, 1920.

' awve/wbm J mzZJMr/We .treatment of the timbers with servative such as creosote oil;

Piercln Timber, a spec cation.

.UNITED STATES PATENT OFFICE.

'FAUL J. HOWE, OF RIDGEWOOD, NEW JERSEY.

arra'nnrus FOR rrnncme TIMBER.

9 Application .filed April 28,

To all whom it may concern:

Be it known that I, PAUL J. Hown, a citizen of the United States, and resident of Ridgewood, county of Bergen, and State of New Jersey, have invented certain new and useful Improvements in Apparatus for of which the following is This invention relates to improvements in apparatus for piercing timber, and has for its general object the provision of means for rap1dly and economically piercing, or. formmg holes or incisions in, the surface of wooden timbers, such as railway ties, pilin structural timbers, fence posts, telegrap and telephone poles, and cross-arms for tele graph and telephone poles, preparatory to a liquid pre- Other objects of the invention are to provide a' piercing apparatus having a multiplicity of piercing teeth so constructed that it may be easily and rapidly shifted over the surface of a timber; to provide a piercing implement having a toothed rolling element and power-operated impact means so constructed and arranged that the impact means may be utilized to simultaneously rotate or advance the toothed element along the timber and force the teeth thereon into the timber; and to provide a oweroperated .multi-toothed piercing e ement which may be readily manipulated 011 either sawed, hewn, or round timbers to form holes or incisions over the entire surface area thereof or any desired portion of the surface of the timber.

A further ob'ect of the invention is to provide a simp e'and eflicient power-actuated piercing device which may be readily 1 adapted to economically practise the method of treating timber described in the patent to Goss, No. 1,252,428, Qated Jan. 8, 1918. In the accompanying drawings- Figure 1 is a side elevation, partly in vertical section, of one form of apparatus-embodying the invention; v

Fig. 2 a fragmentary front elevation showing the type of rolling element illus-' trated in Fig. 1;; 3

Figs. 3 and '4 frontviews, part1 in section, showing two modified forms 0 toothed rolling elements;

Figs. 5 and 6 enlarged plan and side e1ev ations, respectively; showing more clearly the Specification of Letters Patent.

I illustrated in Figs. 5 and 'in the surface of the timber Patented July 13, 1920. 1920. Serial a. 377,375.

shape of the teeth on the rolling element illustrated in Figs. 1 and 2; and I Flg, 7 an enlarged side elevation showing the shape of the teeth formed on the sec; tional rolling elements illustrated in Figs. 3 and 4.

Referring to the drawings by numerals, 1 deslgnates the casing or cylinder of an ordlnary fluid-pressure operated hammer in whlch is mounted a reciprocating piston or hammer head 2. Th with the usual hand and the usual bushin tool socket, or chuck 4; at its lower end. The usual valve 5 and operating trigger 6 therefor are provided for governing the supply of .fluid under pressure to the piston cylinder.

A tool shank 7 is threadedor otherwise rigidly held in the socket or chuck 4. The upper or anvil end 8 of the tool shank 7 is adapted to be struck by the hammer head 2, as the head rapidly vibrates in the cylinder 1, to transmit the blow or impact of the hammer to an axle or shaft 9 supported in a yoke or fork 10 formed on the lower end of the shank. The blow of the hammer head is transmitted to the axle 9 transversely of the axle.

Various forms and sizes of rolling elements, having any desired form of teetharranged in irregular or, any desired relatlon, may be mounted on the axle 9. In Flgs. 1

and 2 a solid cylindrical roller 11 is shown,

I 14 may be arranged regularly or irregularly may be of any desired form. As shown, these teeth are of diamond shape in crossand section and relatively wide 'at the base circumferentially of the roller and narrow longitudinally of the roller, as more clearly 6. This form of tooth, when the machine is moved length wise of the timber, forms holes or incislons primarily by a spreading or wedge action which opens up the surface fibers with little or no severing of the individual fibers. I have shown the teeth 14 arrangedin spirally or diagonally. extending rows with t e teeth of each row spaced short distances apart longitudinally intermittently advance and arrest the piercof the rollers and the rows of teeth spaced inghead.

a relatively. great distance apart circum-' it will be obvious that various forms of ferentially of the rollers. This arrangeimpact devices other than fluid-pressure 5 ment is advantageous for the reasons set hammers may be employed in connection 70 forth in detail in the patent to Gross above with the piercing rollers, such'for example referred to, since the device will form openas electrically operated hammers. ings so located that the timber will quickly What I claim is:

. absorb a preservative in uniform quantity 1. Timber piercing means comprising a and to a uniform depth over its entire surrotary toothed element and means for in 75 face. termittently exerting pressure on said ele- In Figs. 3, 4 and 7 I have shown toothed ment transversely of its axis of rotation. rolling elements made up of a plurality of 2. Timber piercing means comprising a thin steel plates or disks 1 5, stamped or rotary element provided with a multiplicity otherwise formed with a plurality of radial of circumferentially and laterally spaced 80 teeth 16 spaced equal distances apart around teeth, and means for lntermlttently exerting the perimeter of the disks. The disks 15 are pressure on said element transversely of its spaced apart by plain spacing disks or axis of rotation. washers 1 and the two series of disks are de- -3. Timber piercing means comprising a j 20 tachably locked together in fixed relation by rotary element, a plurality of-'piercing de- 85 bolts 18. The toothed disks may be secured vices carried by said element, means for rotogether with the teeth 16 in any desired retatably supporting said element, and powerlation. As shown, the disks are connected operated means for delivering blows on said together with their teeth staggered to form supporting means.

i spiral or diagonal rows of teeth having the 4. Timber piercing means comprising a 90 50 rearwardly, as shown in ig. 1, so that the t, i ti same relation to each other as the teeth 14 multiplicity of piercing devices, means for on roller 11. The shape of teeth 16 may supporting said devices in laterally and cirbe varied as desired. As shown, these teeth cumferentially spaced relation around a comare triangular in side elevation and substanmon axis, and means for subjecting said tially as wide at the base as the length of the supporting means to intermittent impacts. 95 inclined edges of the teeth. The teeth are 5. Timber piercing means comprising a beveled from one face to the other at one reciprocable impact device, means for'recipside to form a narrow diagonal fiber-shear rocating said device, a toothed rotary ele= mg edge 19 at the point of the tooth and nt, and means for rotatably supporting form beveled inclined side edges 20 which said element adapted to be struck by said 100 serve primarily to spread the fibers of the impact device.

tlmber apart. 6. Timber piercing means comprising a l'1 g- 3 bo h he o thed dl ks 1 and h yoke, an elongated rotary element journaled spacmg disks 17 decrease in diameter toward in said yoke, a multiplicity of piercing de- 40 the mlddle of the rolling element, thu o m vices carried by said element spaced apart 9 mg a puncturing element havi g a conc ve circumferentially and longitudinally of the rf It W 1 he understood that the element, and meansfor delivering blows on solid roller 11 as well as the sectional roller id ok I may be variously shaped to adapt the rollers 7,- A apparatus f the class set forth com-' to efiicientlyact on timbers of various shape prising a rotary toothed element, and means 110 in cross-section or timbers having irregular h b successive im acts may be trans- Sllrfwes; mitted to said element with the line of force In using the apparatus, the shank [an extending through the axis of. the element pneumatic hammer are referably tilted t, an angle t a Surface on hi h the ele- 115 successive impacts of the hammer head on 8, I an apparatus piercing timber, the the pp end of the Shank W111 f t0 combination of a. shank, a yoke on one'end e th r er a th a ma l y of said shank, a rotary element journaled vance the tool. The power hammer may in said yoke, a plurality of piercing devices 5 thus be utilized to advance the tool as well ar i d by said l nt, andp wer-operated as force the teeth into the t s means for delivering blows in rapid sucthe teeth are mounted on a rolling element cession on the other end of said shank. the blows of the hammer serve to -s1mul- 9. Thecombination with a portable powertaneouslyforce the leading teeth into the operated hammer having an impact head, a wood andwithdraw the rearmost teeth from shank held to the lower end of said hamthe'wood. The piercing device may thus be mer with its upper end in the path of the contmuously advanced with a mmlmum of impact head, a yoke on the lower end of said efiort on the part of the operator and it will shank, a rotary element journaled in said obviously be unnecessary to bodily elevate yoke, and a plurality of rowsof piercingde-l the piercing head to withdraw the teeth and vices carried by said element. 1a

' vices of each 10. The combination with a portable power-operated hammer having an impact head, a shank held to the lower end of said hammer with its upper end in the path of the impact head, a yoke on the lower end of said shank, a rotary element journaled in said yoke, and a plurality of rows of piercing devices carried by said element, said rows of devices extending spirally around said element.

11. The combination with a portable power-operated hammer having an impact head, a shankheld to the lower end of said hammer with its upper end in the path of the impact head, a yoke on the lower end of said shank, a rotary element journaled in said yoke, and a plurality of rows of piercing devices carried by said element, said rows of devices extending along spiral lines longitudinally of the element and the derow being closer together than the distance between the different rows of devices.

12. In an apparatus for piercing timber, the combination of a shank, a yoke on one end of said shank, a rotary element journaled in said yoke, a plurality of piercing devices carried by said element, and power operated means for delivering blows in rapid succession on the other end of said shank, said element decreasing in diameter from ing devices being located at spaced points both longitudinally and circumferentially of the 'element.

13. Timber piercing apparatus comprising a rotary element embodying a series of toothed plates secured together with their teeth in staggered relation, means for rotatably supporting said-element, and poweroperated means for delivering successive blows'on said supporting means in a direc-;

tion transversely ment.

14. Timber piercing ap ing a rotary element embo of the axis of said clef aratus comprisying a serles of toothed plates secured together with their teeth in staggered relation, means for rotatably supporting said element, and a power hammer operatively connected to simultaneously roll said element over the surface of a timber and force the teeth into and out of the timber.

In testimony whereof I hereunto afiix my 1ts ends toward the center and said pierc-' 

